. >> reporter: republican jon huntsman was literally running for the white house. in atlanta, participants in the peach tree road race trying to survive 10 kilometers, an endurance contest, but nothing like the hot dog eating contest on coney island. american warriors got a hearty welcome home. in afghanistan, a group of american soldiers took this day to reenlist. america's 235th birthday. a day to stand up and be proud, even if you're sitting down. brian mooar, nbc news, washington. >>> if you plan to celebrate the 4th here in d.c., here's the lineup for tonight. the capital 4th concert will begin at 8:00. the fireworks kick off around 9:15. we'll have a live report on that. that's coming up in our next half hour. the smithsonian metro station and most roads around the mall will be closed. so you might want to give yourself plenty of time to get there. you can also go to nbc washington.com for more details. >>> a day at the beach came to an early and abrupt halt at sandy point state park in maryland today. authorities say a young boy draund drowned after disappea